Generally speaking, the cheapest blades aren’t worth bothering with
for cutting metal. Any good blade will perform well on all but the
most demanding situations. Harder materials call for harder blades.
Because ofthe relationship between hardness and brittleness in
heat-treated tool steel (that blades are made from) harder blades
can break more easily than softer, springier blades. Bendability is
good for most applications, as it’s an indication of flexibility (and
resistance to fatigue from repeated flexing). For harder materials,
such as Platinum or steel, a harder, slightly morebrittle, blade
will cut faster and farther. I saw a lot of tool steel, and I’ve been
using Pike Platinum blades almost exclusively for several years.
Grobet has recently come out with a new blade, the ‘Super Pike’,
which (from what I’ve heard) is somewhere between the regular Pike
and the Platinum. For what I’m cutting, it’s no big deal if a few
blades snap prematurely, because overall, the Platinums cut
fasterand farther. So, as far as a distance -per- number-of-strokes
perspective, they are the clear champion for me.